---
title: "Upgrading Trellix Agent 5.8.x on unmanaged Linux and Macintosh systems using install script"
slug: "upgrading-trellix-agent-5-8-x-unmanaged-linux-macintosh"
updated: 2026-10-26T07:33:44Z
published: 2026-10-26T07:33:44Z
canonical: "docs.trellix.com/upgrading-trellix-agent-5-8-x-unmanaged-linux-macintosh"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.trellix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Upgrading Trellix Agent 5.8.x on unmanaged Linux and Macintosh systems using install script

You can manually upgrade Trellix Agent 5.8.x on Linux (Debian or RPM package) and Macintosh systems that are not managed by ePO - On-prem using the *install_upd.sh* script. This option is available only on ePO - On-prem 5.6.4 and later versions. When Trellix Agent is installed in unmanaged mode, the DXL client is automatically upgraded and in an idle state.

You must have administrator rights to install Trellix Agent on the client system.

1. Download Trellix Agent installation package *MAxxxLNX.zip* for Linux and *MAxxxMAC.zip* for Macintosh from the Software Catalog on ePO - On-prem.
2. Extract the package to a temporary location and copy *install_upd.sh* to the client system.
3. Open **Terminal**, then enter the path where you have copied the script file.
4. Run the following command by giving root credentials when requested.

```
sudo chmod +x install_upd.sh
sudo ./install_upd.sh -b
```

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